.teacher-settings {
    max-width: 900px;
    margin: 40px auto;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    padding: 40px 32px;
}

.page-header {
    margin-bottom: 32px;
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    color: #333;
    margin: 0;
}

.settings-content {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.settings-section {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 24px 20px;
    margin-bottom: 16px;
}

.section-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #409eff;
    margin-bottom: 18px;
}

.setting-item {
    display: flex;
    align-items: center;
    margin-bottom: 18px;
}

.setting-label {
    width: 120px;
    color: #666;
    font-weight: 500;
    margin-right: 16px;
}

.setting-input,
.setting-select {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid #e1e5e9;
    border-radius: 8px;
    font-size: 1rem;
    background: #fff;
    transition: border-color 0.3s;
}

.setting-input:focus,
.setting-select:focus {
    border-color: #409eff;
    outline: none;
}

.settings-actions {
    display: flex;
    gap: 16px;
    margin-top: 32px;
}

.save-btn {
    background: #409eff;
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 12px 32px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.save-btn:hover {
    background: #337ecc;
}

.reset-btn {
    background: #f5f5f5;
    color: #333;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 12px 32px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.reset-btn:hover {
    background: #e8e8e8;
}